- not legally permitted or authorized; unlicensed; unlawful.
- disapproved of or not permitted for moral or ethical reasons.
Origin of illicit
SynonymsSee more synonyms for on Thesaurus.com
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- another word for illegal
- not allowed or approved by common custom, rule, or standardillicit sexual relations
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for illicitness
Online Etymology Dictionary, © 2010 Douglas Harper